| Title |
Desulfurization Behavior of Hot Metal by Ar+CH4 Gas Bubbling |
| Authors |
손호상(Ho Sang Sohn); 우성준(Sung Joon Woo); 정우광(Woo Gwang Jung) |
| ISSN |
1738-8228(ISSN), 2288-8241(eISSN) |
| Keywords |
Desulfurization; Methane; Hot metal; Bubbling; Chemical reaction; Kinetics; Mass transfer |
| Abstract |
Desulfurization behavior of hot metal was studied by bubbling Ar+CH₄mixture gas through submerged lance. The effects of melt temperature, CH₄partial pressure and gas flow rate on the desulfurization rate of hot metal are discussed. Desulfurization rate was increased by increasing temperature and partial pressure of CH₄. Desulfurization rate of hot metal was described by mixed control of the mass transfer of H₂ gas and [S] through gas and liquid film around the rising gas bubbles and chemical reaction at the interface. It was concluded that the desulfurization of hot metal by Ar+CH₄mixture gas bubbling is controlled by chemical reaction of H₂ gas and [S] at the gas bubble and liquid interface under the present experimental conditions. (Received February 2, 2004) |